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Full text of "IS 14936: Triazophos, Technical Concentrate"

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Disclosure to Promote the Right To Information 

Whereas the Parliament of India has set out to provide a practical regime of right to 
information for citizens to secure access to information under the control of public authorities, 
in order to promote transparency and accountability in the working of every public authority, 
and whereas the attached publication of the Bureau of Indian Standards is of particular interest 
to the public, particularly disadvantaged communities and those engaged in the pursuit of 
education and knowledge, the attached public safety standard is made available to promote the 
timely dissemination of this information in an accurate manner to the public. 




Mazdoor Kisan Shakti Sangathan 
"The Right to Information, The Right to Live" 



IS 14936 (2001): Triazophos, Technical Concentrate [FAD 1: 
Pesticides and Pesticides Residue Analysis] 




Jawaharlal Nehru 
'Step Out From the Old to the New' 



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Satyanarayan Gangaram Pitroda 
Invent a New India Using Knowledge 



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PROTECTED BY COPYRIGHT 



Indian Standard 

TRIAZOPHOS, TECHNICAL CONCENTRATE 

SPECIFICATION 



IS 14936 : 2001 

(Reaffirmed -2012) 



ICS 19.020,65.100.10 



© BIS 2001 

BUREAU OF INDIAN STANDARDS 

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG 
NEW DELHI 110002 

July 200] Price Grou pi 



Pesticides Sectional Committee, FAD 1 



FOREWORD 

This Indian Standard was adopted by the Bureau of Indian Standards, after the draft finalized by the Pesticides 
Sectional Committee had been approved by the Food and Agriculture Division Council. 

Triazophos, Technical Concentrate is an insecticide used in the formulations meant for agricultural purposes. 

Triazophos is the accepted common name by the International Organization for Standardization for O, O Diethyl- 
O-l, Phenyl 1, 2, 4 -triazol-3yl phosphorothioate. The emperical and structural formula and the molecular weight of 
triazophos are as follows: 

Emperical Formula Structural Formula Molecular Weight 

S 

>OCH 2 CH 3 
*OCH 2 CH 3 



0-o- J < 



C 12 H 16 N 3 3 PS <{ )) N ^ y C — 0— P< 313.3 



In the preparation of this standard, due consideration has been given to the provisions of the Insecticides Act, 
1 968 and the Rules framed thereunder. However this standard is subject to restrictions imposed under the Act and 
Rules wherever applicable. 

For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, 
observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with 
IS 2 : 1960 'Rules for rounding off numerical values ( revised)' . The number of significant places retained in the 
rounded off value should be the same as that of the specified value in this standard. 



IS 14936 : 2001 



Indian Standard 

TRIAZOPHOS, TECHNICAL CONCENTRATE — 

SPECIFICATION 



1 SCOPE 

This standard prescribes the requirements and the 
methods of sampling and test for triazophos, technical 
concentrate. 

2 REFERENCES 

the following Indian Standards contain provisions 
which through reference in this text, constitute 
provisions of this standard. At the time of publication, 
the editions indicated were valid. All standards are 
subject to revision, and parties to agreements based 
on this standard are encouraged to investigate the 
possibility of applying the most recent editions of the 
standards indicated below: 

IS No. Title 

1070 : 1 992 Reagent grade water ( third revision ) 

6940 : 1982 Methods of test for pesticides and 

their formulation (first revision ) 

8190 Requirements for packing of 

(Part2): 1988 pesticides: Part 2 Liquid pesticides 

( second revision ) 

10946 : 1996 Methods of sampling for technical 
grade pesticides (first revision ) 

3 REQUIREMENTS 

3.1 Description 

The meterial shall be in the form of dark brown coloured 
liquid with typical phosphoric ester odour. Some 
suspended matter or turbidity may be present. 

3.2 The material shall also comply with the requirements 
given in Table 1 . 

4 PACKING 

The material shall be packed in mild steel drum suitably 
lacquered with epoxy resin from inside. The general 
requirements as given in IS 8190 (Part 2 ) shall also 
be followed. 

5 MARKING 

5.1 The container shall bear legibly and indelibly the 
following information: 

a) Name of the material; 

b) Name and address of the manufacturer; 

c) Date of manufacture; 

d) Date of expiry; 

e) Batch Number; 

f) Triazophos content, percent ( m/m ); 

g) Net mass of the contents; and 



Table 1 Requirements for Triazophos, 
Technical Concentrate 



(Clause 3. 2) 


► 


SI Characteristic R 
No. 


equire- 

ment 


Method of Test, 
Ref to 




Annex of Clause of 
this IS 6940 
Standard 


(1) (2) 


(3) 


(4) (5) 


i) Triazophos content, 
percent by mass, 
Min 


60.0 


A — 


ii) Water content, percent 
by mass, Max 


0.3 


— 4.1 


iii) Acidity, percent by 
mass ( as H 2 S0 4 ), 
Max 


2.0 


— 11.3.2 


iv) Material insoluble 


0.2 


— 9 


in acetone, percent 
by mass, Max 







h) Any other information required under the 
Insecticides Act, 1968 and Rules framed 
thereunder; and Standards of Weights and 
Measures ( Packaged Commodities ) Rules, 
1977. 

5.2 BIS Certification Marking 

The product may also be marked with the Standard 
Mark. 

5.2.1 The use of the Standard Mark is governed by 
the provisions of the Bureau of Indian Standards Act, 
1986 and the Rules and Regulations made thereunder. 
The details of conditions under which the licence for 
the use of the Standard Mark may be granted to 
manufacturers or producers may be obtained from the 
Bureau of Indian Standards. 

6 SAMPLING 

Representative sample of the material shall be 
drawn accordingto IS 10946. 

7 TESTS 

7.1* Tests shall be carried out by the methods referred 
to in col 4 and 5 of Table 1 . 

7.2 Quality of Reagents 

Unless specified otherwise, pure chemicals and distilled 
water ( see IS 1070 ) shall be employed in tests. 

NOTE — 'Pure chemicals' shall mean chemicals that do 
not contain impurities which affect the results of analysis. 



IS 14936 : 2001 



ANNEX A 

[Table 1 9 SI No. (i)] 
DETERMINATION OF TRIAZOPHOS CONTENT 



A-l GENERAL 

HPLC method shall be used for estimating Triazophos 
content. 

A-2 HIGH PERFORMANCE LIQUID 
CHROMATOGRAPHY 

A-2.1 Principle 

A High Performance Liquid Chromatograph ( HPLC ) 
unit with a ultraviolet ( UV ) detector is used for 
determination. A solution containing known amount 
of Triazophos standard and solution containing known 
mass of Triazophos sample is injected to obtain 
respective peak areas. The percentage of Triazophos 
in sample then computed by standard relationship. 

A-2.2 Apparatus 

A- 2.2.1 HPLC Unit — A suitable instrument equipped 
with a UV detector and a printer plotter-cum-integrator. 
The HPLC conditions suggested below can be 
changed in equipment employed, provided 
standardization is done: 

Column — Stainless steel 25 cm long, 4.6 mm i.d. 
packed with silica particle size 5 \i ( make E merek 
or waters ). 

Detector — Ultraviolet. 

Wavelength — 254 nm. 

Flowrate — 2.Q ml/min. 

Sample size — 20 \x\. 

A-2.3 Reagents 

A- 2.3.1 Iso-Octane HPLC Grade 

A-2.3.2 7, 4 Dioxane HPLC Grade 

A-2.3.3 Toluene HPLC Grade 

A-2.3.4 Water HPLC Grade 

A-2.3.5 Make Up Phase 

Mix wo-Octane, 1 ,4 Dioxane ( before mixing the solvent, 
add 0.15 percent water in 1,4 Dioxane ) in the ratio 
of90:10. 



A-2.3.6 Mobile Phase 

Mix woOctane, 1,4 Dioxane ( before mixing the solvent, 
add 0. 1 5 percent water in 1 , 4 Dioxane ) in the ratio of 
90:10. 

A-2.3.7 Triazophos reference standard of known purity 
( A standard of 60 percent LC with known active 
ingredient content only be used ). 

A-2.4 Procedure 

A-2. 4.1 Preparation of Standard Solution 

Weigh accurately standard to contain 1 1 mg of active 
ingredient in 50-ml volumetric flask. Add 10 ml of 
Toluene and dissolve it and make volume up to the 
mark with make up phase (A-2.3.5 ). Take out 5 ml of 
this solution with pipette into another 25-ml volumetric 
flask and make up to the mark with make up phase 
(A-2.3.5). 

A-2.4.2 Preparation of Sample Solution 

Weigh accurately sample to contain 110 mg of 
Triazophos active ingredient in 50-ml volumetric flask. 
Add 10 ml of Toluene and dissolve it and make up to 
the mark with make up phase ( A-2.3.5 ). Take out 
5 ml of this solution with pipette into another 25-ml 
volumetric flask and make up to the mark with make 
up phase ( A-2.3.5 ). 

A-2.4.3 Estimation 

Inject 20 yA of standard solution into HPLC unit peak 
area of two successive injections agree within 1 percent. 
Then inject 20 \il of sample solution into HPLC unit 
to obtain the pack area. 

A-2.4.4 Calculation 

A x M x 
Percent Triazophos = — — x -73— xP 
A s M 2 

where 

A t = Area of Triazophos in unknown sample; 
A s = Area of Triazophos in reference standard; 
M x ~ Mass, in ml, of reference standard; 
M 2 ~ Mass, in ml, of unknown sample; and 
P = Triazophos content in standard. 



Bureau of Indian Standards 

BIS is a Statutory institution established under the Bureau of Indian Standards Act, 1986 to promote 
harmonious development of the activities of standardization, marking and quality certification of goods and 
attending to connected matters in the country. 

Copyright 

BIS has the copyright of all its publications. No part of these publications maybe reproduced in any form without 
the prior permission in writing of BIS. This does not preclude the free use, in the course of implementing the 
standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to 
copyright be addressed to the Director (Publications), BIS. 

Review of Indian Standards 

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed 
periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are 
needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards 
should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue 
of 'BIS Catalogue' and 'Standards : Monthly Additions'. 

This Indian Standard has been developed from Doc : No. FAD 1 ( 92 1 ). 

Amendments Issued Since Publication 



Amend No. 



Date of Issue 



Text Affected 



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